Inappropriate implantable cardioverter defibrillator shocks due to atrial far‐field on the tip‐to‐ring channel for lead dislodgement

Abstract

Abstract We reported a case of inappropriate implantable cardioverter defibrillator shocks, due to atrial far‐field on the tip‐to‐ring channel of the fast electrical activity during atrial fibrillation, caused by lead dislocation in the right ventricle outflow tract. During these episodes the can‐to‐right ventricle coil signal correctly recorded the ventricular activity. The shock storm stopped when an antitachycardia pacing restored sinus rhythm.

Keywords

• device complications
• electrogram
• implantable defibrillator
• inappropriate shock
• lead dislodgement